Log if failure

Author: holzmaster

src/commands/stempelkarte.ts

@@ -158,10 +158,24 @@ export default class StempelkarteCommand implements ApplicationCommand {
             stempelkarten.push(drawStempelkarteBackside(subjectAvatarUrl, avatarUrls));
         }
 
-        const results = (await Promise.allSettled(stempelkarten)).filter(
+        const allResults = await Promise.allSettled(stempelkarten);
+
+        const results = allResults.filter(
             result => result.status === "fulfilled",
         ) as PromiseFulfilledResult<Buffer>[];
 
+        if (results.length === 0) {
+            await command.reply({
+                content: "Es ist ein Fehler aufgetreten. Bitte versuche es später erneut.",
+            });
+
+            log.error(
+                allResults.map(e => ("reason" in e ? e.reason : undefined)),
+                "No stempelkarten were created",
+            );
+            return;
+        }
+
         const files = results.map((result, index) => ({
             name: `stempelkarte/${ofMember.nickname}-${index}.png`,
             attachment: result.value,